Bad study habits are one of the major causes of students’ academic failure, and any skill that increases one’s ability to study, learn, and respond is called a study skill. These skills can include motivational methods, concentration skills, time management, reading skills, memorizing, reminding and providing information (
1). Acquiring study skills is often left to the students. In many schools and universities, teaching study methods and effective learning skills are not taught, and students have to choose a method through trial and error and get accustomed to it gradually (
2). Failure to choose a correct study method by students not only reduces their energy and time, but also it can be one of the major causes of academic failure and even dropout, as well as a tendency to poor habits (
3). It can also confuse the majority of students and negatively affect their performance in exams (
4). In each educational system, students’ “academic achievement” is one of the indicators of academic success. Measuring the amount of academic achievement and the factors affecting it are among the main subjects that have attracted the attention of researchers (
5). Therefore, it is necessary to identify and institutionalize effective learning and study methods in order to increase the academic achievement of the students and improve the learning status, the accuracy, speed and quality of reading and comprehension; naturally, first of all, the recognition of students’ skills of and approaches to the study is essential. One of the important factors that can increase students’ motivation and academic achievement is learning and study skills (
2). Nowadays, teaching study skills and techniques has been recognized to be necessary in many universities for the development of their learning, so many universities in Canada and USA (California, and Virginia) address this subject at the start of the university. In Iran, teaching study skills and techniques has recently been addressed in the reform plan for medical education in some medical universities (
1). In a review (late 2017), Gilavand examined the status of study habits among Iranian students of medical sciences. After reviewing all the relevant studies, he reported students’ study habits and skills as moderate in Iran University of Medical Sciences (
6). Studies have shown that appropriate methods for studying and learning have a positive impact on students’ academic achievement (
7). Each student has a unique study style that may even be different despite having the same age, culture and religion (
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9). Given that academic progress or failure is one of the criteria for the efficiency of the educational system, the discovery and study of variables affecting academic performance leads to better recognition and prediction of effective variables at university. Since, the study methods of the students affect their learning and educational progress, and the process plays a role in their cognitive, practical skills, and ultimately their job; therefore, we should measure them in order to correct them (
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13). Since dentistry students face a large amount of new and difficult subjects during their study, learning and memorizing of them is very difficult. Also, the bad study habit is one of the major causes of academic failure of students and can have an important impact on their academic status and career prospect.